The article does well to explain how free speech is encumbered by Congress' decision to reverse the burden of copyright so that it is more difficult for works to enter the public domain. I found it extremely informative regarding the legal situation, especially by citing certain Supreme Court precedences that might hold the key to a pro-public domain stance.

Very interesting analysis of the burdens the current US copyright law puts on a some non-profit educational projects through an overprotection of a vast majority of published works. .

This is ok if you already know the background of the debate between copyright law & public domain. The privitization of public domain seriously damages the rights of people without the means to litigate expensive lawsuits.